Decanter of Endless Water

You can use an action to remove the stopper and speak one of three command words, whereupon an amount of fresh water or salt water (your choice) pours out of the flask. The water stops pouring out at the start of your next turn. Choose from the following options:
"Stream" produces 1 gallon of water.
"Fountain" produces 5 gallons of water.
"Geyser" produces 30 gallons of water that gushes forth in a geyser 30 feet long and 1 foot wide.